js左右滑动切换效果代码

要实现JavaScript中的左右滑动切换效果，通常会涉及到HTML、CSS和JavaScript三个部分。以下是一个简单的示例，展示了如何创建一个左右滑动的图片切换效果。

HTML结构

<div class="slider-container">
    <div class="slider-wrapper">
        <img src="image1.jpg" alt="Image 1" class="slide">
        <img src="image2.jpg" alt="Image 2" class="slide">
        <img src="image3.jpg" alt="Image 3" class="slide">
    </div>
    <button class="slider-button prev">Prev</button>
    <button class="slider-button next">Next</button>
</div>

CSS样式

.slider-container {
    position: relative;
    width: 80%;
    margin: auto;
}

.slider-wrapper {
    overflow: hidden;
    position: relative;
}

.slide {
    width: 100%;
    display: none;
    position: absolute;
    top: 0;
    left: 0;
}

.slide:first-child {
    display: block;
}

.slider-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.prev {
    left: 10px;
}

.next {
    right: 10px;
}

JavaScript代码

document.addEventListener('DOMContentLoaded', function() {
    const slides = document.querySelectorAll('.slide');
    let currentSlide = 0;

    function showSlide(n) {
        slides.forEach((slide, index) => {
            slide.style.display = index === n ? 'block' : 'none';
        });
    }

    function nextSlide() {
        currentSlide = (currentSlide + 1) % slides.length;
        showSlide(currentSlide);
    }

    function prevSlide() {
        currentSlide = (currentSlide - 1 + slides.length) % slides.length;
        showSlide(currentSlide);
    }

    document.querySelector('.next').addEventListener('click', nextSlide);
    document.querySelector('.prev').addEventListener('click', prevSlide);
});